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← TechnologyWhich consequence is most likely when an aircraft flap actuator freezes mid-flight?
A)Asymmetric lift and roll moment✓
B)Controlled stall during descent
C)Balanced drag for speed reduction
D)Symmetrical increase in lift capacity
💡 Explanation
An actuator failure leading to an asymmetric flap deployment results in unequal lift distribution across the wing due to differential air pressure; surface area changing the coefficient of aerodynamic lift. Therefore, asymmetric lift and a roll moment occur, rather than a symmetric increase in lift because only one flap would extend.
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